/*
 FS.h - file system wrapper
 Copyright (c) 2015 Ivan Grokhotkov. All rights reserved.
 This file is part of the esp8266 core for Arduino environment.
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 This library is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */

#ifndef FS_H
#define FS_H

#include <memory>
#include <Stream.h>

namespace fs {

#define FILE_READ "r"
#define FILE_WRITE "w"
#define FILE_APPEND "a"

    class File;

    class FileImpl;
    typedef std::shared_ptr<FileImpl> FileImplPtr;
    class FSImpl;
    typedef std::shared_ptr<FSImpl> FSImplPtr;

    enum SeekMode { SeekSet = 0, SeekCur = 1, SeekEnd = 2 };

    class File : public Stream {
    public:
        File(FileImplPtr p = FileImplPtr()) : _p(p) { _timeout = 0; }

        size_t write(uint8_t) override;
        size_t write(const uint8_t* buf, size_t size) override;
        int    available() override;
        int    read() override;
        int    peek() override;
        void   flush() override;
        size_t read(uint8_t* buf, size_t size);
        size_t readBytes(char* buffer, size_t length) { return read((uint8_t*)buffer, length); }

        bool        seek(uint32_t pos, SeekMode mode);
        bool        seek(uint32_t pos) { return seek(pos, SeekSet); }
        size_t      position() const;
        size_t      size() const;
        void        close();
                    operator bool() const;
        time_t      getLastWrite();
        const char* path() const;
        const char* name() const;

        bool isDirectory(void);
        File openNextFile(const char* mode = FILE_READ);
        void rewindDirectory(void);

    protected:
        FileImplPtr _p;
    };

    class FS {
    public:
        FS(FSImplPtr impl) : _impl(impl) {}

        File open(const char* path, const char* mode = FILE_READ);
        File open(const String& path, const char* mode = FILE_READ);

        bool exists(const char* path);
        bool exists(const String& path);

        bool remove(const char* path);
        bool remove(const String& path);

        bool rename(const char* pathFrom, const char* pathTo);
        bool rename(const String& pathFrom, const String& pathTo);

        bool mkdir(const char* path);
        bool mkdir(const String& path);

        bool rmdir(const char* path);
        bool rmdir(const String& path);

    protected:
        FSImplPtr _impl;
    };

}  // namespace fs

#ifndef FS_NO_GLOBALS
using fs::File;
using fs::FS;
using fs::SeekCur;
using fs::SeekEnd;
using fs::SeekMode;
using fs::SeekSet;
#endif  //FS_NO_GLOBALS

#endif  //FS_H
